Ooqoq



UTE STATES PATENT OFFICE,

WILLIAM BOARDMAN, JR., OF NEW YORK, N. Y.

PORTABLE STEAM-PUMP.

Specification of Letters Patent No. 5,352, dated November 6, 1847.

To all whom t may concern :y

Be it known that I, WILLIAM BOARDMAN, Jr., of the city, county, and State of New York, have invent-ed a new and Improved Portable Steam-Pump for Relieving Stranded Vessels and other Purposes; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification..

My portable steam pump is composed of a steam engine cylinder placed between and parallel with two pump cylinders; t-he piston rods of the steam cylinder and of t-he two pump cylinders are all connected to the same cross-head; which combination causes the steam engine piston rod to operate the two pump piston rods by direct action, and obviates the necessity of supporting and guiding ways for the respectivepiston rods. The steam and pump cylinders-thus connected-are placed upon and secured to horizontal hollow supporting beams which constitute the induction water ways of the pump cylinders, with which they have free communication-eduction ways-or chambers-for discharging the water from the pump-are placed over the pump cylinders and connected to the same by valves the main induction pipe, for supplying both pump cylinders, descends from between the hollow beams and is connected to each by valves. The above combination, substantially as hereinafter set forth and represented in the accompanying drawings, constitutes my invent-ion.; and forms a lighter, more compact, and therefore more portable steam pump than has ever before been known.

In the accompanying drawings Figure l, is a top view of my portable steam pump; Fig. 2, a side elevation, Fig. 3, an elevation of the front end, and F ig.` 4, a vertical longitudinal section through the same in the line a', of Fig. l.

Similar letters indicate like parts in all the figures.

A, is the cylinder of the steam engine.

B, B, are the pump cylinders.

C, is the cross head to which the piston rods of the steam engine, and the pump cylinders are connected. The ends of the steam engine and pump cylinders have their bearings upon the hollow beams H` H, passing transversely under the same, to which they are connected as follows z-Lugs are cast on the under side of each end of the steam cylinder which rest upon the hollow beams, (H, H,) and are secured to the same by means of bolts passing through the projecting base of the lugs. Water passages a, a, are cast opposite each other on the sides of both ends of the pump cylinders, surrounded by the tlanches g, g, and z', i; the fianges g, g, surrounding the induction passages, rest upon and are bolted to the tops of the hollow beams (H H,) supporting the pump cylinders, and securing them to the hollow beams; at the same time that the induction passages form a free communication between each end of the pump cylinders and the hollow beams, or induction water ways.

'Ihe eduction ways or water chambers I, I, rest upon, and are bolted to the tlanches ,z', surrounding t-hie eduction water passages leading from the pump cylinders into the eduction chambers.

L, L, are valves, openingupward, placed over the eduction passages between the pump cylinders and eduction chambers or ways I, as shown in Fig. 4.

A valve chamber it, is placed between the central portion of the hollow beams or induction water ways H, H, connected to each by the inclined clack valves L, it.

F is the induction pipe descending from the valve chamber it, through which water is drawn into the induction water ways and pump cylinders.

In Fig. 4, of the accompanying drawings, the pump pistons are represented as passing to the right, opening the left hand receiving valve L, and drawing the water through the induction pipe F, into the hollow beam at the left and the pump cylinders; at the same time that it closes the left hand eduction valves L, and the right hand induction valve h', and opens the right hand eduction v alves L, through which apertures the water in the cylinders, (drawn in during the passage of the pistons to t-he left,) is discharged into the eduction ways I, and escapes through the discharging apertures E, at the right hand ends of the same. i

The steam engine-forming a part of my portable steam pump-may be constructed in any manner deemed most expedient by engineers.

Having thus fully described my improved portable steam pump, what I claim therein as my invention and' desire to secure by Letters Patent, is-

1. The combination 'of the steam engine with the two pumps substantially as herein set forth: Viz., placing the steam engine Cylinder between the two pump cylinders, with the piston rods of three cylinders all connected to the same cross-head.

2. I also claim the combination of the steam engine and the pump cylinders (connected as above set forth) with the hollow supporting beams, serving as water ways to the pump cylinders, substantially as herein set forth.

8. I also claim the combination of the steam engine and pum cylinders, with the hollow beams or inc uetion Water ways (H, H,) and the eduction Chambers or water ways (I, L) the whole Constructed, arranged and operating substantially in the manner and for the purpose herein se't forth.

WILLIAM BOARDMAN, JR.

Vitnesses:

Z. C. ROBBINS, GUY C. I-IUMPHRIES. 

